While our history can be painful, there are always wonderful things that take place, strengths and enduring lessons that come from even the worst experiences.
In this study, maturity method was used to estimate in-place strength of large concrete placements.
If the in-place strength is predicted from a test of a 50 mm diameter core, the coefficient of variation of the predicted in-place strength is approximately 12.5%.
The coefficient of variation of the in-place strength predicted from a test of a 100 or 150 mm diameter core is between 4 and 5.5.%.
A two-step method for converting a concrete core compression test result to the in-place strength of the corresponding volume of concrete is presented.
These error estimates do not account for possible variation of in-place strength throughout the volume of the element being cored.
The purpose of this paper is to develop the I-PreConS (Intelligent PREdiction system of CONcrete Strength) that provides in-place strength information of the concrete to facilitate concrete form removal and scheduling for construction.
The accuracy of the predicted in-place strength is affected by the inherent error of the core strength measurement itself, and by the uncertainty of the various strength correction factors.
The strength of a non-standard core is first converted to the equivalent strength of a standard core, and then the standard core strength is converted to the equivalent in-place strength.
The objective of this study was to evaluate the capability of different strength maturity models to account for the effect of the hydration heat on the in-place strength development of high-strength concrete specifically developed for nuclear facility structures under various ambient curing temperatures.
And what has gotten me to this place of strength".
